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Author
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Topic: cut outs on flowmasters?
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75 chevy
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Member # 6717
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posted
 
 
2 chambered flows...will cut outs make more horsepower?
[ January 11, 2007, 02:23 AM: Message edited by: morespeed ]
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2009 prius
1975 monza
Posts: 1917 | From: california | Registered: Apr 2006
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Quick 88LX
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Member # 1950
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posted
Depends on what your combination is. If you are near stock, cut-outs will actually hurt performance.
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"Men are Made, Not Born"
Car Picture : http://www.angelfire.com/theforce/quick88lx/
Original Member #495. Can I get my number back?
Posts: 1784 | From: Fairfield, CA/Okinawa, Japan | Registered: Oct 2002
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75 chevy
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Member # 6717
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posted
shorties,off road x,2 chambers.
I was thinking make the cut outs and then thread in a plug.
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2009 prius
1975 monza
Posts: 1917 | From: california | Registered: Apr 2006
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Quick 88LX
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Member # 1950
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Are those the only modifications to your entire engine? If so, cut-outs really aren't needed.
However, if you plan on doing big modifications down the road, installing threaded plugs OR the electrical/mechanical cut-outs is an option you might want to think about.
Personally, I think cut-outs sound like crap. I would take a 3" muffler on a turbo 377ci small block any day.
...Not that I plan on building such a combination ![[Big Grin]](biggrin.gif)
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"Men are Made, Not Born"
Car Picture : http://www.angelfire.com/theforce/quick88lx/
Original Member #495. Can I get my number back?
Posts: 1784 | From: Fairfield, CA/Okinawa, Japan | Registered: Oct 2002
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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what do you need cutouts for? your not going to gain anything noticable but a bunch of noise.look into getting a better muffler as the flowmaster line is old technolgy.
Posts: 22469 | From: Sacramento | Registered: Nov 2001
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75 chevy
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Member # 6717
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posted
I don't want to spend money on mufflers right now. I was thinking to do the cut outs. 4 more horsepower? 2 hp per muffler?
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2009 prius
1975 monza
Posts: 1917 | From: california | Registered: Apr 2006
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Eddie510-
CAFords OG
Member # 2354
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posted
spintechs the way to go if you want to see an increase
[ January 11, 2007, 08:01 PM: Message edited by: Eddie306 ]
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"I like to be more politicaly correct than what I really believe so I can get more frinds here on CaFords"-Cummings "TIPICKLE"
Posts: 6556 | Registered: Jan 2003
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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posted
quote:
Originally posted by morespeed:
I don't want to spend money on mufflers right now. I was thinking to do the cut outs. 4 more horsepower? 2 hp per muffler?
The amount of money you are going to spend on cutouts and installation would be better spent on a real set of mufflers.and im not following you on the 2hp per muffler comment.I picked up 3/10's off JUST a muffler change ![[Wink]](wink.gif) FLOWMASTERS are garbage and the run of the mill ones arent rated for anything making power.
Posts: 22469 | From: Sacramento | Registered: Nov 2001
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75 chevy
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Member # 6717
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no money... still paying for the clutch.
labor isn't an issue. how much would the plugs cost at home depot? $3-$4.00.
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2009 prius
1975 monza
Posts: 1917 | From: california | Registered: Apr 2006
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NCALSVT
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Member # 3205
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i would listen to haulinassmotorsports
Posts: 2162 | From: NOR CAL | Registered: Aug 2003
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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posted
quote:
Originally posted by morespeed:
no money... still paying for the clutch.
labor isn't an issue. how much would the plugs cost at home depot? $3-$4.00.
do your thing then,just trying to give you some advice.it sounds like you already have your mind set on doing them.........good luck
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I was under the impression you were getting "REAL" cutouts from Flowtech,MAC etc,ya know an exhaust company....These go inline before the muffler and are the diameter of your exhaust.You simply pull the cutout cover off or there is a setup where you can do it with a cable ran to the inside of the car.Thats why I said it would cost just as much or close to getting REAL MUFFLERS
I have NO IDEA what your trying to do but it sounds pretty rigged if you ask me,but what do I know ![[Razz]](tongue.gif)
[ January 11, 2007, 10:42 PM: Message edited by: HaulinAss Motorsports ]
Posts: 22469 | From: Sacramento | Registered: Nov 2001
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Motorhead6T5
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Member # 4969
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Ditch the muffler,Just have the exhaust extended out to the rear. Wala ...cheap slp loudmouth exhaust.
Edit: You could even take your stock axle back down there and have them hack the muffler off and replace it with pipe.
[ January 11, 2007, 11:52 PM: Message edited by: Motorhead6T5 ]
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65 Fastback
72 Malibu
Posts: 1230 | From: 530 | Registered: Oct 2004
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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posted
quote:
Originally posted by Motorhead6T5:
Ditch the muffler,Just have the exhaust extended out to the rear. Wala ...cheap slp loudmouth exhaust.
Edit: You could even take your stock axle back down there and have them hack the muffler off and replace it with pipe.
backpressure is a neat thing,keep the mufflers!
Posts: 22469 | From: Sacramento | Registered: Nov 2001
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Motorhead6T5
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Member # 4969
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posted
quote:
Originally posted by HaulinAss Motorsports:
quote:
Originally posted by Motorhead6T5:
Ditch the muffler,Just have the exhaust extended out to the rear. Wala ...cheap slp loudmouth exhaust.
Edit: You could even take your stock axle back down there and have them hack the muffler off and replace it with pipe.
backpressure is a neat thing,keep the mufflers!
A lot of people run a o/r h or x with slp and have good results,which is basicly what he would have. Its just loud and sounds like garbage.
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65 Fastback
72 Malibu
Posts: 1230 | From: 530 | Registered: Oct 2004
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lostsoul
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Member # 5797
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I have the SLP's with the stock pipes and cat.. = sounds good.. I heard others that took off the cats and sounded too loud and crappy. We are in California.. thats illegal
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slp/ati procharger
Posts: 80 | Registered: Jun 2005
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75 chevy
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Member # 6717
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posted
all I was thinking is those little bumps on the back side of the muffler... cut them out thread in a plug. pull the plugs out whenever I wanna run it.
???
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2009 prius
1975 monza
Posts: 1917 | From: california | Registered: Apr 2006
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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posted
quote:
Originally posted by morespeed:
all I was thinking is those little bumps on the back side of the muffler... cut them out thread in a plug. pull the plugs out whenever I wanna run it.
???
and that would do what for you?
Posts: 22469 | From: Sacramento | Registered: Nov 2001
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BUKSING
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Member # 6594
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posted
i finally got what this guy is tryin to do... he actually wants to put an additional hole in the back of his flows... thats hella rigged... dont do it. just add dumps(turn downs)..way more better and practical for what you are trying to do.
Posts: 1571 | From: 510 | Registered: Mar 2006
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75 chevy
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Member # 6717
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posted
I don't know what it would do. that was why I was asking. I was hoping for a little more flow.
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2009 prius
1975 monza
Posts: 1917 | From: california | Registered: Apr 2006
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Daniel50
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Member # 5629
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posted
you already have plenty of flow for you horsepower level. the exhaust is not holding you back
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89 2.3- Sold
91 5.0- 12.7@110 sold
94 5.0- 13.0@105 sold
97 Cobra: Sold
95 5.0- sold
95 5.0-bone stock
Posts: 1017 | From: Discovery Bay, CA | Registered: Apr 2005
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92stangLX
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Member # 3252
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posted
quote:
Originally posted by morespeed:
I don't know what it would do. that was why I was asking. I was hoping for a little more flow.
This isn't worth the effort. You will gain nothing and ruin a set of mufflers.
If you are looking for free/cheap HP there a plenty of other tricks you can do.
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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posted
quote:
Originally posted by 92stangLX:
quote:
Originally posted by morespeed:
I don't know what it would do. that was why I was asking. I was hoping for a little more flow.
This isn't worth the effort. You will gain nothing and ruin a set of mufflers.
If you are looking for free/cheap HP there a plenty of other tricks you can do.
exactly!
Posts: 22469 | From: Sacramento | Registered: Nov 2001
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Eddie510-
CAFords OG
Member # 2354
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posted
spintechs bro, listen to castro bro. your doing one of them mexican power gains.thats a nono
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"I like to be more politicaly correct than what I really believe so I can get more frinds here on CaFords"-Cummings "TIPICKLE"
Posts: 6556 | Registered: Jan 2003
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